MIT ecg data 读取

代码说明：

% This programm reads ECG data which are saved in format 212. % (e.g., 100.dat from MIT-BIH-DB, cu01.dat from CU-DB,...) % The data are displayed in a figure together with the annotations. % The annotations are saved in the vector ANNOT, the corresponding % times (in seconds) are saved in the vector ATRTIME. % The annotations are saved as numbers, the meaning of the numbers can % be found in the codetable "ecgcodes.h" available at www.physionet.org. % % ANNOT only contains the most important information, which is displayed % with the program rdann (available on www.physionet.org) in the 3rd row. % The 4th to 6th row are not saved in ANNOT.